Po Tisuntiraidapuran (?–1793) was the ruler of Champa from 1780 to 1793. His Vietnamese name was Nguyễn Văn Tá (阮文佐).
Po Tisuntiraidapuran was a descendant of Po Saktiraydapatih. He was appointed the ruler of Champa with the title cai cơ by Nguyễn lord.[2] Since 1771, Champa was a victim of Vietnamese civil war. The fate of Champa was dependent on the outcome of the civil war between the Tây Sơn dynasty and the Nguyễn lords.[3][4] Po Tisuntiraidapuran turned to support Tây Sơn rebels in 1782.[4] He was regarded as a traitor by Nguyễn Ánh. In 1788, Nguyễn Ánh appointed Po Krei Brei (Nguyễn Văn Chiêu) and Po Ladhuanpuguh (Nguyễn Văn Hào) as co-rulers of Champa.[2]
In 1793, Po Tisuntiraidapuran was defeated and captured by Po Ladhuanpuguh. He was executed in Gia Định (present-day Ho Chi Minh City). Since then, Champa rulers did not use the title Thuận Thành trấn phiên vương (順城鎮藩王, "Vassal king of Thuận Thành trấn");[2] Champa was regarded as a chiefdom under Vietnamese thổ ty system.
In the history record Archives royales du Champa, there were two documents related to him.[1]